Download or read book Evaluating the Nature and Strength of Environmental Control on Floodplain Forest Communities written by Molly Van Appledorn and published by . This book was released on 2016 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flooding dynamics are expected to drive compositional patterns of woody overstory species in bottomland ecosystems, yet there is some evidence that flood variability may differentially constrain assemblage composition. Numerous studies have related distributions of plant species to floodplain landforms and geomorphic processes, documenting shifts in community composition along hydrologic and hydraulic gradients. Despite clear associations between species composition and local physical conditions, models predicting composition over broad areas are underdeveloped due to imprecise or implicit characterizations of environmental gradients, difficulty of reconciling fine-scale environmental heterogeneity with broader physical constraints, and overcoming cross-site differences in species' pools. My dissertation examines the relationships between environmental gradients and species' abiotic tolerances as characterized by functional traits in order to understand: 1) what processes constrain or support functional diversity of floodplain forests, and 2) at what scales these processes operate. First, in Chapter 2 I use a regional approach to characterize broad-scale patterns in hydrologic and functional trait diversity of floodplain forest ecosystems from Michigan's Lower Peninsula and Maryland. The analysis tests the hypothesis that if flooding dynamics impose a strong environmental filtering effect as demonstrated in the literature, regional differences in flood frequency, duration and intensity should result in different regional trait pools. I find that regional shifts in hydrologic regime are not matched by similar shifts in functional trait pools, suggesting that functional diversity is maintained through processes operating at finer scales. In Chapter 3 I evaluate the relative strength of environmental filtering, a community assembly process, at the river-valley segment scale by analyzing distributions of functional traits across implicit, regional gradients of inundation dynamics found throughout Michigan's Lower Peninsula. I find evidence of important biotic interactions in certain hydrogeomorphic settings that would indicate a highly variable role of inundation dynamics in shaping floodplain forest assemblages. In Chapter 4 I then build on the findings of the previous chapter to describe how patterns of environmental heterogeneity and flood regime interact across scales affect functional diversity. The results demonstrate the importance of hydrogeomorphic context in shaping patterns of functional composition across floodplain landforms. The final two chapters investigate how ecological strategies of woody overstory species shift under multi-scalar physical constraints within the Maryland Piedmont. In Chapter 5 I characterize flood regime of four Piedmont river-valley segments of contrasting size and morphologies using a validated 2D hydrodynamic model. I demonstrate the novel application of a 3D array of temperature sensors for validating spatially-explicit flood models, and summarize model results to show that patterns of inundation dynamics observed both within and among the four study sites are consistent with river-valley morphologic characteristics. Finally, I relate spatially-explicit flood regime quantifications to systematic surveys of floodplain forest composition to understand how functional attributes of assemblages shift along gradients of hydroperiod at and across multiple spatial scales. The results of Chapter 6 underscore the complexity of biophysical interactions in floodplain ecosystems as evidenced by shifts in functional trait distributions along gradients of aggregate flood regime at both the within- and among-site levels. Overall, my dissertation research has contributed to the advancement of floodplain forest ecology by describing trait-environment linkages at and across multiple spatial scales, demonstrated several novel methodological approaches, and offered new conceptual models of flooding and flood constraint on functional responses in bottomland ecosystems.

Download or read book Community based Environmental Protection written by and published by . This book was released on 1997 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation Classification and Management of the Floodplain Forests of South Central New York written by Lawrence A. Morris and published by . This book was released on 1977 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Response to High Duration and Intensity Flooding Along Pool 26 of the Upper Mississippi River written by Robert J. Cosgriff and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many natural resource managers could not anticipate the effects that the flood of 1993 would have on floodplain forests of the Upper Mississippi River. Previous experience suggested that floodplain forests were adapted to such events and should only experience removal of upland a non-native species. However, when trees considered highly flood tolerant did not leaf out in the spring of 1994, natural resource managers began to realize the serious impact that a large-scale flood could have on floodplain forest communities. To better understand these impacts, researchers with the Long Term Resource Monitoring Program at Pool 26 of the Upper Mississippi River System (UMRS) began describing forest community response to the large-scale flood of 1993. The floodplain forests of the UMRS are some of the most productive ecosystems worldwide. These communities provide habitat and forage for many species of wildlife, produce timber, and provide a valuable carbon dioxide sink. Like many other plant communities, floodplain forest successional patterns are largely driven by disturbance events (e.g., fire, wind-throw, flooding, drought, and physical erosion/deposition). Black willow and eastern cottonwood regenerate on recent deposits of substrate (mainly sand) created by the river. As a result of annual floods, fine sediment drops out of suspension and the low landform occupied by the willow/cottonwood community develops into a low terrace. At the same time, the willow/cottonwood community is gradually being replaced by silver maple and green ash. The process of terrace building continues and communities of mixed forests and oak forests develop as elevation increases and the frequency of flooding decreases. Understanding how these communities respond to the various disturbance events, particularly large scale flooding, is important to natural resource managers who are trying to manage for specific or diverse floodplain forest communities.

Download or read book Floodplain Forest Ecosystem After water management measures written by Miroslav Penka and published by . This book was released on 1991 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical water management measures in the inundation region of southern Moravia significantly affected conditions of terrestrial and water ecosystems. Changes in ecological conditions and reaction of biota in the ecosystems of floodplain forests and meadows and regulated watercourses and retention reservoirs were studied within the UNESCO Man and the Biosphere programme for several years by a multi-disciplinary team of scientific workers. A broad extent of knowledge from many scientific disciplines enables a deeper insight into complexity of ecological relations after an intervention into landscape to ecologists, water managers, foresters, agronomists and biologists of different specializations.

Download or read book Effects of Urbanization on Stream Ecosystems written by Gwen Maria White and published by . This book was released on 1996 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Response to High Duration and Intensity Flooding Along Pool 26 of the Upper Mississippi River written by Robert J. Cosgriff and published by . This book was released on 1999 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many natural resource managers could not anticipate the effects that the flood of 1993 would have on floodplain forests of the Upper Mississippi River. Previous experience suggested that floodplain forests were adapted to such events and should only experience removal of upland a non-native species. However, when trees considered highly flood tolerant did not leaf out in the spring of 1994, natural resource managers began to realize the serious impact that a large-scale flood could have on floodplain forest communities. To better understand these impacts, researchers with the Long Term Resource Monitoring Program at Pool 26 of the Upper Mississippi River System (UMRS) began describing forest community response to the large-scale flood of 1993. The floodplain forests of the UMRS are some of the most productive ecosystems worldwide. These communities provide habitat and forage for many species of wildlife, produce timber, and provide a valuable carbon dioxide sink. Like many other plant communities, floodplain forest successional patterns are largely driven by disturbance events (e.g., fire, wind-throw, flooding, drought, and physical erosion/deposition). Black willow and eastern cottonwood regenerate on recent deposits of substrate (mainly sand) created by the river. As a result of annual floods, fine sediment drops out of suspension and the low landform occupied by the willow/cottonwood community develops into a low terrace. At the same time, the willow/cottonwood community is gradually being replaced by silver maple and green ash. The process of terrace building continues and communities of mixed forests and oak forests develop as elevation increases and the frequency of flooding decreases. Understanding how these communities respond to the various disturbance events, particularly large scale flooding, is important to natural resource managers who are trying to manage for specific or diverse floodplain forest communities.

Download or read book Floodplain Forest Ecosystem Vol 2 After Water Management Measures written by and published by . This book was released on 1991 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress in Civil Architectural and Hydraulic Engineering IV written by Yun-Hae Kim and published by CRC Press. This book was released on 2018-11-22 with total page 1447 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Civil, Architectural and Hydraulic Engineering series provides a forum for exchange of ideas and enhancing mutual understanding between scientists, engineers, policymakers and experts in these engineering fields. This book contains peer-reviewed contributions from many experts representing industry and academic es

Download or read book Floodplain Forest Ecosystem written by and published by . This book was released on 1991 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Floodplain Forest Ecosystem written by Miroslav Penka and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effective Ecological Monitoring written by Gene Likens and published by CSIRO PUBLISHING. This book was released on 2018-05-01 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-term monitoring programs are fundamental to understanding the natural environment and managing major environmental problems. Yet they are often done very poorly and ineffectively. This second edition of the highly acclaimed Effective Ecological Monitoring describes what makes monitoring programs successful and how to ensure that long-term monitoring studies persist. The book has been fully revised and updated but remains concise, illustrating key aspects of effective monitoring with case studies and examples. It includes new sections comparing surveillance-based and question-based monitoring, analysing environmental observation networks, and provides examples of adaptive monitoring. Based on the authors’ 80 years of collective experience in running long-term research and monitoring programs, Effective Ecological Monitoring is a valuable resource for the natural resource management, ecological and environmental science and policy communities.

Download or read book Floodplain Forest Ecosystem written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cities and Flooding written by Abhas K. Jha and published by World Bank Publications. This book was released on 2012-02-01 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urban flooding is an increasing challenge today to the expanding cities and towns of developing countries. This Handbook is a state-of-the art, user-friendly operational guide that shows decision makers and specialists how to effectively manage the risk of floods in rapidly urbanizing settings--and within the context of a changing climate.

Download or read book River restoration a strategic approach to planning and management written by Speed, Robert and published by UNESCO Publishing. This book was released on 2016-09-19 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stream Corridor Restoration written by and published by National Technical Info Svc. This book was released on 1998 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.

Download or read book The Regional Impacts of Climate Change written by Intergovernmental Panel on Climate Change. Working Group II. and published by Cambridge University Press. This book was released on 1998 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cambridge, UK : Cambridge University Press, 1998.